Correct. HIV is spread through rough gay bath house sex, junkies sharing needles, and closet cases bringing it home to their wives from the bath houses. In roughly that order.
The propaganda campaign that ran throughout the 90's (MTV practically had a PSA every commercial break) that it's a danger to everyone was a lie, propped up by a few poor kids who got infected by a tainted transfusion. HIV doesn't transmit very easily, and the actual risk of a man catching it through conventional vaginal sex is almost unbelievably low.
The fact that it was the leading cause of death for adult men for around a decade is even more of a condemnation of gay promiscuity and lack of impulse control, as none of those numbers reflect straight men. Even after the cause was known for years, almost half of gay men in San Francisco had managed to catch it by 1995.
That said, ol' Rushbo wasn't being particularly Christian by mocking the poor dead sods, even if it was in the context of pushing against the overwhelming 90's pc media push to normalize all of the degeneracy causing the AIDS crises. The dead did all have (usually disappointed) parents who mourned them, and he was right to apologize later.